[Captive-portals] CAPPORT API with real Captive Portals and Linux Client: End-to-End demo

[Heng Liu <[e-mail]>]

Hi Everyone,
We are a team in google working on Google Station
<https://station.google.com/> with a mission of connecting the
under-connected by providing fast, secure and reliable WiFi. Within that
charter, CAPPORT + API server spec helps in various ways.

We have a demo ready based on a Mikrotik AP of how a CAPPORT API server
might look like:
Mikrotik device is the dhcp server and CP Enforcement device, and hosts
CAPPORT API https server. The dhcp server is configured to add a custom
Option 160.
Mikrotik device connects to gStation Captive Portal.
User equipment is a linux laptop with ubuntu runing dhclient with custom
hooks (scripts): Upon obtaining an IP via DHCPv4, a browser will open
automatically with the url of the gStation Captive portal.

This will be in a self contained Mikrotik Hap ac box with LTE backhaul, and
others can connect to the SSID and try it out as well (if the dhcp client
is modified to understand the option).

We were wondering if a demo of such would be useful to the committee in the
coming IETF 106 in Singapore if CAPPORT API is a topic of interest.

regards,
Dr. Heng Liu